Precancerous Squamish PDT Treatment

I'm contemplating the PDT treatment, I have a few concerns because I have sensitivite skin (rashes and hives, from dogs to hot tubs) If you've experienced this treatment and knowing what you know now, would you do this again? Has anyone received this treatment and had an adverse allergic reaction? Also, is there possibly an alternative treatment that's not so invasive? Zayclara has been prescribed daily a week prior to the actual treatment. Any experience with this drug? And, what about Aminolevulinic acid (ALA or Levulan®) the cream that's applied before the blue light therapy? Thank you for your input!